Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7f5ed167ad6832…

MALICIOUS

PDF

35.4 KB Created: 2020-08-11 01:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4dea82bbb2e7b4204ff95c2dfed97af0 SHA-1: f4c110bab4e6a10406e65eddd5d2469e9962003c SHA-256: cd7f5ed167ad6832789226405a850c428f3f22ab5b62f99f37d0b5edd7caf8e0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=creative+writing+worksheets+for+grade+3+pdf', is designed to redirect users to malicious content. The document also contains a large number of external PDF links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. The primary attack pattern is social engineering through a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=creative+writing+worksheets+for+grade+3+pdf In PDF document text
    • http://mijurira.alessiakockel.com/uploads/1/3/1/4/131438641/1453397.pdfIn PDF document text
    • http://files.manolositalianrestaurant.com/uploads/1/3/1/4/131483148/fozifetatutuvajuka.pdfIn PDF document text
    • http://files.ccpdiscoveryschool.com/uploads/1/3/2/7/132711999/tudozitariboletokas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fodafozisejuleluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/80128530129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/pallet_playhouse_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5625/5396/files/95520715405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/norivaxosimijanep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7212/7125/files/96340313155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/28238917631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/40779990487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/ruzarepijitewulevinanoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/pajusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/m._ed_psychology_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB5 5556 bytes
SHA-256: c299509fcec1380bf878f7a08a66bfa810b32ef481f927f3bcb7797fb11abab2
font_01_sfnt_off00005db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB3 10200 bytes
SHA-256: d0153d9f9d1467e447c2556e7c8e129892408c30873d56f91cde73648b6a032a

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